MIL-HDBK-6870 Nondestructive Inspection Program Requirements for Aircraft and Missile Materials and PartsThis handbook provides guidance to government personnel and contractors for defining the requirements for establishing an acceptable Nondestructive Inspection NDI program for the development, production, and sustainment phases of DoD aircraft and missile structural components when directly referenced in the item specification contract or order. This handbook is for guidance only and cannot be cited as a requirement.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 - 15 - 16 - 17 - 18 - 19 - 20 - 21 - 22 - 23 - 24 - 25 - 26 - 27 - 28

MIL-HDBK-6870B

CONTENTS

Paragraph 1.	SCOPE	Page 1
1.1	Scope.	1
1.2	Applicability.	1
2.	APPLICABLE DOCUMENTS	1
2.1	General	1
2.2	Government documents.	1
2.2.1	Specifications, standards, and handbooks.	1
2.2.2	Other Government documents.	2
2.3	Non-Government publications.	2
3.	DEFINITIONS	4
3.1	Inspector certification.	4
3.2	Classification.	4
3.3	Contracting agency.	4
3.4	Contractor.	4
3.5	Final inspection.	4
3.6	Fracture-critical part.	4
3.7	Fracture-critical traceable part.	4
3.8	Maintenance-critical part.	4
3.9	Mission-critical part.	5
3.10	Material Review Board (MRB).	5
3.11	Nondestructive inspection (NDI).	5
3.12	Nondestructive inspection (NDI) procedure.	5
3.12.1	General NDI procedure.	5
3.12.2	Part specific NDI procedures.	5
3.13	NDI facility.	5
3.14	NDI Program Plan.	5
3.15	NDI process specification.	5
3.16	NDI Requirements Review Board (NDIRRB).	6
3.17	Probability of detection (POD).	6
3.18	Qualification.	6
3.19	Safety-of-flight structure.	6
3.20	Subcontractors.	6
3.21	Supplier.	6
4.	GENERAL REQUIREMENTS	6
4.1	Preparation of the NDI Program Plan.	7
4.2	Responsibility for NDI.	7
4.2.1	Objective.	7
4.2.2	Applicability.	7
4.2.3	Elements.	7
4.2.4	Coordination.	8
4.3	Parts classification.	8
4.3.1	Structural parts classification.	8
4.3.2	Propulsion systems parts classification.	9
4.3.3	Mechanical equipment and subsystem parts classification.	9
4.4	NDI Requirements Review Board (NDIRRB).	9
4.4.1	Purpose.	9

iii